// Verify
        assertNull(result);
    }

    public void test_getResponse_withUnsetType() {
        // Execute - requesting type without setting response
        ActionResponse result = authenticator.getResponse(SsoResponseType.METADATA);

        // Verify
        assertNull(result);
    }

    // Test logout method

        params.put(ExtractData.RESOURCE_NAME_KEY, resourceName);
        assertNull(pdfExtractor.getPassword(params));

        url = "http://test.com/hoge1.pdf";
        resourceName = null;
        params.put(ExtractData.URL, url);
        params.put(ExtractData.RESOURCE_NAME_KEY, resourceName);
        assertNull(pdfExtractor.getPassword(params));

        url = "http://test.com/hoge1.pdf";

    }

    @Test
    @DisplayName("Default state is null for both fields")
    void defaultStateIsNull() {
        TestSpnegoToken t = new TestSpnegoToken();
        assertNull(t.getMechanismToken(), "mechanismToken should default to null");
        assertNull(t.getMechanismListMIC(), "mechanismListMIC should default to null");
    }

    @Test
    @DisplayName("Setter and getter for mechanismToken work")

        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_constructor_withNullMessageAndCause() {
        // Test constructor with null message and null cause
        SearchEngineClientException exception = new SearchEngineClientException(null, null);

        assertNotNull(exception);
        assertNull(exception.getMessage());

        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_constructorWithNullMessageAndCause() {
        // Test constructor with null message and null cause
        StorageException exception = new StorageException(null, null);

        assertNotNull(exception);
        assertNull(exception.getMessage());

        DocMap docMap = new DocMap(parentMap);

        assertNull(docMap.put("newKey", "newValue"));
        assertEquals("newValue", docMap.get("newKey"));

        assertEquals("newValue", docMap.put("newKey", "updatedValue"));
        assertEquals("updatedValue", docMap.get("newKey"));

        assertNull(docMap.get("nonexistent"));
    }

    public void test_remove() {

    assertNull(mediaType.charsetName())
  }

  @Test fun testUnsupportedCharset() {
    val mediaType = parse("text/plain; charset=utf-wtf")
    assertNull(mediaType.charsetName())
  }

  @Test fun testCharsetNameIsDoubleQuotedAndSingleQuoted() {
    val mediaType = parse("text/plain;charset=\"'utf-8'\"")
    assertNull(mediaType.charsetName())
  }

        TransportException exception = new TransportException();

        // Verify the exception is created and has no message
        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());

        // Verify it's an instance of CIFSException
        assertTrue(exception instanceof CIFSException);
    }

    @Test

        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_constructor_withNullMessageAndCause() {
        // Test constructor with null message and null cause
        PluginException exception = new PluginException(null, null);

        assertNotNull(exception);
        assertNull(exception.getMessage());

        assertEquals(1, boostdocpager.getCurrentPageNumber());
        assertNull(boostdocpager.id);
        assertNull(boostdocpager.urlExpr);
        assertNull(boostdocpager.boostExpr);
        assertNull(boostdocpager.sortOrder);
        assertNull(boostdocpager.createdBy);
        assertNull(boostdocpager.createdTime);
        assertNull(boostdocpager.versionNo);

        boostdocpager.setAllRecordCount(999);